Added notes about vertex order

2 files changed, 7 insertions, 5 deletions

diff --git a/src/raylib.h b/src/raylib.h
index 3cb8d327..37557c61 100644
--- a/src/raylib.h
+++ b/src/raylib.h
@@ -1054,9 +1054,9 @@ RLAPI void DrawRectangleLines(int posX, int posY, int width, int height, Color c
 RLAPI void DrawRectangleLinesEx(Rectangle rec, int lineThick, Color color);                              // Draw rectangle outline with extended parameters
 RLAPI void DrawRectangleRounded(Rectangle rec, float roundness, int segments, Color color);              // Draw rectangle with rounded edges
 RLAPI void DrawRectangleRoundedLines(Rectangle rec, float roundness, int segments, int lineThick, Color color); // Draw rectangle with rounded edges outline
-RLAPI void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color);                                // Draw a color-filled triangle
-RLAPI void DrawTriangleLines(Vector2 v1, Vector2 v2, Vector2 v3, Color color);                           // Draw triangle outline
-RLAPI void DrawTriangleFan(Vector2 *points, int numPoints, Color color);                                 // Draw a triangle fan defined by points
+RLAPI void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color);                                // Draw a color-filled triangle (vertex in counter-clockwise order!)
+RLAPI void DrawTriangleLines(Vector2 v1, Vector2 v2, Vector2 v3, Color color);                           // Draw triangle outline (vertex in counter-clockwise order!)
+RLAPI void DrawTriangleFan(Vector2 *points, int numPoints, Color color);                                 // Draw a triangle fan defined by points (first vertex is the center)
 RLAPI void DrawTriangleStrip(Vector2 *points, int pointsCount, Color color);                             // Draw a triangle strip defined by points
 RLAPI void DrawPoly(Vector2 center, int sides, float radius, float rotation, Color color);               // Draw a regular polygon (Vector version)
 
diff --git a/src/shapes.c b/src/shapes.c
index d1956b26..6217d2ad 100644
--- a/src/shapes.c
+++ b/src/shapes.c
@@ -1179,6 +1179,7 @@ void DrawRectangleRoundedLines(Rectangle rec, float roundness, int segments, int
 }
 
 // Draw a triangle
+// NOTE: Vertex must be provided in counter-clockwise order
 void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color)
 {
     if (rlCheckBufferLimit(4)) rlglDraw();
@@ -1214,6 +1215,7 @@ void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color)
 }
 
 // Draw a triangle using lines
+// NOTE: Vertex must be provided in counter-clockwise order
 void DrawTriangleLines(Vector2 v1, Vector2 v2, Vector2 v3, Color color)
 {
     if (rlCheckBufferLimit(6)) rlglDraw();
@@ -1232,7 +1234,7 @@ void DrawTriangleLines(Vector2 v1, Vector2 v2, Vector2 v3, Color color)
 }
 
 // Draw a triangle fan defined by points
-// NOTE: First point provided is shared by all triangles
+// NOTE: First vertex provided is the center, shared by all triangles
 void DrawTriangleFan(Vector2 *points, int pointsCount, Color color)
 {
     if (pointsCount >= 3)
@@ -1263,7 +1265,7 @@ void DrawTriangleFan(Vector2 *points, int pointsCount, Color color)
 }
 
 // Draw a triangle strip defined by points
-// NOTE: Every new point connects with previous two
+// NOTE: Every new vertex connects with previous two
 void DrawTriangleStrip(Vector2 *points, int pointsCount, Color color)
 {
     if (pointsCount >= 3)